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It is often useful to be able to communicate with the Arduino – for example, a common use of an Arduino is for data collection. You may have a temperature sensor wired in to the Arduino and interface with flash storage to log the temperature [url=http://www.piktor.fr/air-jordan-pas-cher/]air jordan pas cher[/url] data. Later you have to go remove the flash storage and transfer it to your computer. But what if you could [url=http://www.riad-marrakesh.fr]abercrombie pas cher[/url] communicate [url=http://www.mxitcms.com/abercrombie/]abercrombie milano[/url] with the Arduino? With Ethernet or wireless connectivity, you could simple connect to the Arduino with a computer and capture the data real time. This offers much more automation, and opens a world of possibilities – real time alerts, real-time adjustments [url=http://www.chu-forex.fr/hollister.php]hollister france[/url] (have the Arduino switch something on/off) and more.
This article has presented several options for [url=http://www.ennenne.it]moncler sito ufficiale[/url] adding communications capabilities to the Arduio. In a future article I will cover actual specifics [url=http://www.accrh.fr]doudoune moncler pas cher[/url] of adding a specific interface, including the NSLU2.
WiFi: [url=http://www.piktor.fr/doudoune-moncler/]doudoune moncler[/url] For some, this may be the best solution. If you can not or do [url=http://www.muvilav.it]woolrich sito ufficiale[/url] not want to run wires of any kind, there are solutions ranging from 400/900 MHz transceivers that use 4-6 pins for simple communications to more powerful XBee, ZigBee and even 802.11 WiFi. The primary issue I have found with these solutions is cost or the technical [url=http://www.lotogame.fr/louboutin-pas-cher/]louboutin pas cher[/url] expertise required. Also double check if the interface you are using requires any libraries or interface code that will use up space within the Arduino. The RFM units are promising as they are low cost, though I have not successfully interfaced them as of yet.
Serial: The Arduino has TTL lines, not traditional RS232, [url=http://www.mxitcms.com/abercrombie/]abercrombie[/url] but it is possible for reasonable cost to use a conversion/level adapter or circuit. You could then run a serial [url=http://www.tesangay.com/barbour.php]barbour deutschland[/url] line to a computer. This is acceptable in [url=http://www.renaissancedestoiles.fr]louboutin pas cher[/url] many cases, but restricts you to using one computer, and in the case of my home, the wiring is not as convenient. I have Ethernet cat5 running all over the place, so if I am going to use a wired solution Ethernet makes the most sense.

Source:

Check out for more electronics and [url=http://www.lotogame.fr/louboutin-pas-cher/]louboutin[/url] amateur radio related information.

There are already a number of choices available for communications.

The Arduino is a small programmable device that can hold a small program and perform tasks such as reading temperature sensors, turning on or off switches, and can even serve as the ‘brain’ for a robot. I have used the Arduino (actually freeduino) for projects related to HVAC and hydroponics automation.
NSLU2 or Computer: For my application, I chose to use some NSLU2 units I had (these are often available via online auction). The NSLU2 is a network attached storage device (NAS) that is often modified (hacked) to run alternate operating systems and change it’s functionality at the hardware level. In my case I overclocked mine and installed Debian Linux using an 8GB flash drive. The NSLU2 also uses a TTL interface, though at 3.3v instead of 5v. Interfacing is done with 3 simple wires, and a resistor is required on one line for the 3.3v to 5v conversion.

Ethernet: There are a number of good solutions for [url=http://www.chu-forex.fr/airjordan.php]jordan pas cher[/url] adding Ethernet capabilities such as [url=http://www.lotogame.fr/hollisterfrance.php]www.lotogame.fr/hollisterfrance.php[/url] shields and serial to Ethernet bridges/adapters. Some require a ‘tcp/ip stack’ to be written in to the Arduino – consider this as it uses a lot of storage space.

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